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Path: ~/home/caidadmin/dev2.sca-caid.org.old/wp-admin/includes/

File Content: `class-theme-upgrader.php`

<?php
/**
 * Upgrade API: Theme_Upgrader class
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 4.6.0
 */

/**
 * Core class used for upgrading/installing themes.
 *
 * It is designed to upgrade/install themes from a local zip, remote zip URL,
 * or uploaded zip file.
 *
 * @since 2.8.0
 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
 *
 * @see WP_Upgrader
 */
class Theme_Upgrader extends WP_Upgrader {

	/**
	 * Result of the theme upgrade offer.
	 *
	 * @since 2.8.0
	 * @var array|WP_Error $result
	 * @see WP_Upgrader::$result
	 */
	public $result;

	/**
	 * Whether multiple themes are being upgraded/installed in bulk.
	 *
	 * @since 2.9.0
	 * @var bool $bulk
	 */
	public $bulk = false;

	/**
	 * Initialize the upgrade strings.
	 *
	 * @since 2.8.0
	 */
	public function upgrade_strings() {
		$this->strings['up_to_date'] = __('The theme is at the latest version.');
		$this->strings['no_package'] = __('Update package not available.');
		/* translators: %s: package URL */
		$this->strings['downloading_package'] = sprintf( __( 'Downloading update from %s&#8230;' ), '<span class="code">%s</span>' );
		$this->strings['unpack_package'] = __('Unpacking the update&#8230;');
		$this->strings['remove_old'] = __('Removing the old version of the theme&#8230;');
		$this->strings['remove_old_failed'] = __('Could not remove the old theme.');
		$this->strings['process_failed'] = __('Theme update failed.');
		$this->strings['process_success'] = __('Theme updated successfully.');
	}

	/**
	 * Initialize the installation strings.
	 *
	 * @since 2.8.0
	 */
	public function install_strings() {
		$this->strings['no_package'] = __('Installation package not available.');
		/* translators: %s: package URL */
		$this->strings['downloading_package'] = sprintf( __( 'Downloading installation package from %s&#8230;' ), '<span class="code">%s</span>' );
		$this->strings['unpack_package'] = __('Unpacking the package&#8230;');
		$this->strings['installing_package'] = __('Installing the theme&#8230;');
		$this->strings['no_files'] = __('The theme contains no files.');
		$this->strings['process_failed'] = __('Theme installation failed.');
		$this->strings['process_success'] = __('Theme installed successfully.');
		/* translators: 1: theme name, 2: version */
		$this->strings['process_success_specific'] = __('Successfully installed the theme <strong>%1$s %2$s</strong>.');
		$this->strings['parent_theme_search'] = __('This theme requires a parent theme. Checking if it is installed&#8230;');
		/* translators: 1: theme name, 2: version */
		$this->strings['parent_theme_prepare_install'] = __('Preparing to install <strong>%1$s %2$s</strong>&#8230;');
		/* translators: 1: theme name, 2: version */
		$this->strings['parent_theme_currently_installed'] = __('The parent theme, <strong>%1$s %2$s</strong>, is currently installed.');
		/* translators: 1: theme name, 2: version */
		$this->strings['parent_theme_install_success'] = __('Successfully installed the parent theme, <strong>%1$s %2$s</strong>.');
		/* translators: %s: theme name */
		$this->strings['parent_theme_not_found'] = sprintf( __( '<strong>The parent theme could not be found.</strong> You will need to install the parent theme, %s, before you can use this child theme.' ), '<strong>%s</strong>' );
	}

	/**
	 * Check if a child theme is being installed and we need to install its parent.
	 *
	 * Hooked to the {@see 'upgrader_post_install'} filter by Theme_Upgrader::install().
	 *
	 * @since 3.4.0
	 *
	 * @param bool  $install_result
	 * @param array $hook_extra
	 * @param array $child_result
	 * @return type
	 */
	public function check_parent_theme_filter( $install_result, $hook_extra, $child_result ) {
		// Check to see if we need to install a parent theme
		$theme_info = $this->theme_info();

		if ( ! $theme_info->parent() )
			return $install_result;

		$this->skin->feedback( 'parent_theme_search' );

		if ( ! $theme_info->parent()->errors() ) {
			$this->skin->feedback( 'parent_theme_currently_installed', $theme_info->parent()->display('Name'), $theme_info->parent()->display('Version') );
			// We already have the theme, fall through.
			return $install_result;
		}

		// We don't have the parent theme, let's install it.
		$api = themes_api('theme_information', array('slug' => $theme_info->get('Template'), 'fields' => array('sections' => false, 'tags' => false) ) ); //Save on a bit of bandwidth.

		if ( ! $api || is_wp_error($api) ) {
			$this->skin->feedback( 'parent_theme_not_found', $theme_info->get('Template') );
			// Don't show activate or preview actions after installation
			add_filter('install_theme_complete_actions', array($this, 'hide_activate_preview_actions') );
			return $install_result;
		}

		// Backup required data we're going to override:
		$child_api = $this->skin->api;
		$child_success_message = $this->strings['process_success'];

		// Override them
		$this->skin->api = $api;
		$this->strings['process_success_specific'] = $this->strings['parent_theme_install_success'];//, $api->name, $api->version);

		$this->skin->feedback('parent_theme_prepare_install', $api->name, $api->version);

		add_filter('install_theme_complete_actions', '__return_false', 999); // Don't show any actions after installing the theme.

		// Install the parent theme
		$parent_result = $this->run( array(
			'package' => $api->download_link,
			'destination' => get_theme_root(),
			'clear_destination' => false, //Do not overwrite files.
			'clear_working' => true
		) );

		if ( is_wp_error($parent_result) )
			add_filter('install_theme_complete_actions', array($this, 'hide_activate_preview_actions') );

		// Start cleaning up after the parents installation
		remove_filter('install_theme_complete_actions', '__return_false', 999);

		// Reset child's result and data
		$this->result = $child_result;
		$this->skin->api = $child_api;
		$this->strings['process_success'] = $child_success_message;

		return $install_result;
	}

	/**
	 * Don't display the activate and preview actions to the user.
	 *
	 * Hooked to the {@see 'install_theme_complete_actions'} filter by
	 * Theme_Upgrader::check_parent_theme_filter() when installing
	 * a child theme and installing the parent theme fails.
	 *
	 * @since 3.4.0
	 *
	 * @param array $actions Preview actions.
	 * @return array
	 */
	public function hide_activate_preview_actions( $actions ) {
		unset($actions['activate'], $actions['preview']);
		return $actions;
	}

	/**
	 * Install a theme package.
	 *
	 * @since 2.8.0
	 * @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
	 *
	 * @param string $package The full local path or URI of the package.
	 * @param array  $args {
	 *     Optional. Other arguments for installing a theme package. Default empty array.
	 *
	 *     @type bool $clear_update_cache Whether to clear the updates cache if successful.
	 *                                    Default true.
	 * }
	 *
	 * @return bool|WP_Error True if the installation was successful, false or a WP_Error object otherwise.
	 */
	public function install( $package, $args = array() ) {

		$defaults = array(
			'clear_update_cache' => true,
		);
		$parsed_args = wp_parse_args( $args, $defaults );

		$this->init();
		$this->install_strings();

		add_filter('upgrader_source_selection', array($this, 'check_package') );
		add_filter('upgrader_post_install', array($this, 'check_parent_theme_filter'), 10, 3);
		if ( $parsed_args['clear_update_cache'] ) {
			// Clear cache so wp_update_themes() knows about the new theme.
			add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
		}

		$this->run( array(
			'package' => $package,
			'destination' => get_theme_root(),
			'clear_destination' => false, //Do not overwrite files.
			'clear_working' => true,
			'hook_extra' => array(
				'type' => 'theme',
				'action' => 'install',
			),
		) );

		remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
		remove_filter('upgrader_source_selection', array($this, 'check_package') );
		remove_filter('upgrader_post_install', array($this, 'check_parent_theme_filter'));

		if ( ! $this->result || is_wp_error($this->result) )
			return $this->result;

		// Refresh the Theme Update information
		wp_clean_themes_cache( $parsed_args['clear_update_cache'] );

		return true;
	}

	/**
	 * Upgrade a theme.
	 *
	 * @since 2.8.0
	 * @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
	 *
	 * @param string $theme The theme slug.
	 * @param array  $args {
	 *     Optional. Other arguments for upgrading a theme. Default empty array.
	 *
	 *     @type bool $clear_update_cache Whether to clear the update cache if successful.
	 *                                    Default true.
	 * }
	 * @return bool|WP_Error True if the upgrade was successful, false or a WP_Error object otherwise.
	 */
	public function upgrade( $theme, $args = array() ) {

		$defaults = array(
			'clear_update_cache' => true,
		);
		$parsed_args = wp_parse_args( $args, $defaults );

		$this->init();
		$this->upgrade_strings();

		// Is an update available?
		$current = get_site_transient( 'update_themes' );
		if ( !isset( $current->response[ $theme ] ) ) {
			$this->skin->before();
			$this->skin->set_result(false);
			$this->skin->error( 'up_to_date' );
			$this->skin->after();
			return false;
		}

		$r = $current->response[ $theme ];

		add_filter('upgrader_pre_install', array($this, 'current_before'), 10, 2);
		add_filter('upgrader_post_install', array($this, 'current_after'), 10, 2);
		add_filter('upgrader_clear_destination', array($this, 'delete_old_theme'), 10, 4);
		if ( $parsed_args['clear_update_cache'] ) {
			// Clear cache so wp_update_themes() knows about the new theme.
			add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
		}

		$this->run( array(
			'package' => $r['package'],
			'destination' => get_theme_root( $theme ),
			'clear_destination' => true,
			'clear_working' => true,
			'hook_extra' => array(
				'theme' => $theme,
				'type' => 'theme',
				'action' => 'update',
			),
		) );

		remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
		remove_filter('upgrader_pre_install', array($this, 'current_before'));
		remove_filter('upgrader_post_install', array($this, 'current_after'));
		remove_filter('upgrader_clear_destination', array($this, 'delete_old_theme'));

		if ( ! $this->result || is_wp_error($this->result) )
			return $this->result;

		wp_clean_themes_cache( $parsed_args['clear_update_cache'] );

		return true;
	}

	/**
	 * Upgrade several themes at once.
	 *
	 * @since 3.0.0
	 * @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
	 *
	 * @param array $themes The theme slugs.
	 * @param array $args {
	 *     Optional. Other arguments for upgrading several themes at once. Default empty array.
	 *
	 *     @type bool $clear_update_cache Whether to clear the update cache if successful.
	 *                                    Default true.
	 * }
	 * @return array[]|false An array of results, or false if unable to connect to the filesystem.
	 */
	public function bulk_upgrade( $themes, $args = array() ) {

		$defaults = array(
			'clear_update_cache' => true,
		);
		$parsed_args = wp_parse_args( $args, $defaults );

		$this->init();
		$this->bulk = true;
		$this->upgrade_strings();

		$current = get_site_transient( 'update_themes' );

		add_filter('upgrader_pre_install', array($this, 'current_before'), 10, 2);
		add_filter('upgrader_post_install', array($this, 'current_after'), 10, 2);
		add_filter('upgrader_clear_destination', array($this, 'delete_old_theme'), 10, 4);

		$this->skin->header();

		// Connect to the Filesystem first.
		$res = $this->fs_connect( array(WP_CONTENT_DIR) );
		if ( ! $res ) {
			$this->skin->footer();
			return false;
		}

		$this->skin->bulk_header();

		// Only start maintenance mode if:
		// - running Multisite and there are one or more themes specified, OR
		// - a theme with an update available is currently in use.
		// @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
		$maintenance = ( is_multisite() && ! empty( $themes ) );
		foreach ( $themes as $theme )
			$maintenance = $maintenance || $theme == get_stylesheet() || $theme == get_template();
		if ( $maintenance )
			$this->maintenance_mode(true);

		$results = array();

		$this->update_count = count($themes);
		$this->update_current = 0;
		foreach ( $themes as $theme ) {
			$this->update_current++;

			$this->skin->theme_info = $this->theme_info($theme);

			if ( !isset( $current->response[ $theme ] ) ) {
				$this->skin->set_result(true);
				$this->skin->before();
				$this->skin->feedback( 'up_to_date' );
				$this->skin->after();
				$results[$theme] = true;
				continue;
			}

			// Get the URL to the zip file
			$r = $current->response[ $theme ];

			$result = $this->run( array(
				'package' => $r['package'],
				'destination' => get_theme_root( $theme ),
				'clear_destination' => true,
				'clear_working' => true,
				'is_multi' => true,
				'hook_extra' => array(
					'theme' => $theme
				),
			) );

			$results[$theme] = $this->result;

			// Prevent credentials auth screen from displaying multiple times
			if ( false === $result )
				break;
		} //end foreach $plugins

		$this->maintenance_mode(false);

		// Refresh the Theme Update information
		wp_clean_themes_cache( $parsed_args['clear_update_cache'] );

		/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
		do_action( 'upgrader_process_complete', $this, array(
			'action' => 'update',
			'type' => 'theme',
			'bulk' => true,
			'themes' => $themes,
		) );

		$this->skin->bulk_footer();

		$this->skin->footer();

		// Cleanup our hooks, in case something else does a upgrade on this connection.
		remove_filter('upgrader_pre_install', array($this, 'current_before'));
		remove_filter('upgrader_post_install', array($this, 'current_after'));
		remove_filter('upgrader_clear_destination', array($this, 'delete_old_theme'));

		return $results;
	}

	/**
	 * Check that the package source contains a valid theme.
	 *
	 * Hooked to the {@see 'upgrader_source_selection'} filter by Theme_Upgrader::install().
	 * It will return an error if the theme doesn't have style.css or index.php
	 * files.
	 *
	 * @since 3.3.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem Subclass
	 *
	 * @param string $source The full path to the package source.
	 * @return string|WP_Error The source or a WP_Error.
	 */
	public function check_package( $source ) {
		global $wp_filesystem;

		if ( is_wp_error($source) )
			return $source;

		// Check the folder contains a valid theme
		$working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit(WP_CONTENT_DIR), $source);
		if ( ! is_dir($working_directory) ) // Sanity check, if the above fails, let's not prevent installation.
			return $source;

		// A proper archive should have a style.css file in the single subdirectory
		if ( ! file_exists( $working_directory . 'style.css' ) ) {
			return new WP_Error( 'incompatible_archive_theme_no_style', $this->strings['incompatible_archive'],
				/* translators: %s: style.css */
				sprintf( __( 'The theme is missing the %s stylesheet.' ),
					'<code>style.css</code>'
				)
			);
		}

		$info = get_file_data( $working_directory . 'style.css', array( 'Name' => 'Theme Name', 'Template' => 'Template' ) );

		if ( empty( $info['Name'] ) ) {
			return new WP_Error( 'incompatible_archive_theme_no_name', $this->strings['incompatible_archive'],
				/* translators: %s: style.css */
				sprintf( __( 'The %s stylesheet doesn&#8217;t contain a valid theme header.' ),
					'<code>style.css</code>'
				)
			);
		}

		// If it's not a child theme, it must have at least an index.php to be legit.
		if ( empty( $info['Template'] ) && ! file_exists( $working_directory . 'index.php' ) ) {
			return new WP_Error( 'incompatible_archive_theme_no_index', $this->strings['incompatible_archive'],
				/* translators: %s: index.php */
				sprintf( __( 'The theme is missing the %s file.' ),
					'<code>index.php</code>'
				)
			);
		}

		return $source;
	}

	/**
	 * Turn on maintenance mode before attempting to upgrade the current theme.
	 *
	 * Hooked to the {@see 'upgrader_pre_install'} filter by Theme_Upgrader::upgrade() and
	 * Theme_Upgrader::bulk_upgrade().
	 *
	 * @since 2.8.0
	 *
	 * @param bool|WP_Error  $return
	 * @param array          $theme
	 * @return bool|WP_Error
	 */
	public function current_before($return, $theme) {
		if ( is_wp_error($return) )
			return $return;

		$theme = isset($theme['theme']) ? $theme['theme'] : '';

		if ( $theme != get_stylesheet() ) //If not current
			return $return;
		//Change to maintenance mode now.
		if ( ! $this->bulk )
			$this->maintenance_mode(true);

		return $return;
	}

	/**
	 * Turn off maintenance mode after upgrading the current theme.
	 *
	 * Hooked to the {@see 'upgrader_post_install'} filter by Theme_Upgrader::upgrade()
	 * and Theme_Upgrader::bulk_upgrade().
	 *
	 * @since 2.8.0
	 *
	 * @param bool|WP_Error  $return
	 * @param array          $theme
	 * @return bool|WP_Error
	 */
	public function current_after($return, $theme) {
		if ( is_wp_error($return) )
			return $return;

		$theme = isset($theme['theme']) ? $theme['theme'] : '';

		if ( $theme != get_stylesheet() ) // If not current
			return $return;

		// Ensure stylesheet name hasn't changed after the upgrade:
		if ( $theme == get_stylesheet() && $theme != $this->result['destination_name'] ) {
			wp_clean_themes_cache();
			$stylesheet = $this->result['destination_name'];
			switch_theme( $stylesheet );
		}

		//Time to remove maintenance mode
		if ( ! $this->bulk )
			$this->maintenance_mode(false);
		return $return;
	}

	/**
	 * Delete the old theme during an upgrade.
	 *
	 * Hooked to the {@see 'upgrader_clear_destination'} filter by Theme_Upgrader::upgrade()
	 * and Theme_Upgrader::bulk_upgrade().
	 *
	 * @since 2.8.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem Subclass
	 *
	 * @param bool   $removed
	 * @param string $local_destination
	 * @param string $remote_destination
	 * @param array  $theme
	 * @return bool
	 */
	public function delete_old_theme( $removed, $local_destination, $remote_destination, $theme ) {
		global $wp_filesystem;

		if ( is_wp_error( $removed ) )
			return $removed; // Pass errors through.

		if ( ! isset( $theme['theme'] ) )
			return $removed;

		$theme = $theme['theme'];
		$themes_dir = trailingslashit( $wp_filesystem->wp_themes_dir( $theme ) );
		if ( $wp_filesystem->exists( $themes_dir . $theme ) ) {
			if ( ! $wp_filesystem->delete( $themes_dir . $theme, true ) )
				return false;
		}

		return true;
	}

	/**
	 * Get the WP_Theme object for a theme.
	 *
	 * @since 2.8.0
	 * @since 3.0.0 The `$theme` argument was added.
	 *
	 * @param string $theme The directory name of the theme. This is optional, and if not supplied,
	 *                      the directory name from the last result will be used.
	 * @return WP_Theme|false The theme's info object, or false `$theme` is not supplied
	 *                        and the last result isn't set.
	 */
	public function theme_info($theme = null) {

		if ( empty($theme) ) {
			if ( !empty($this->result['destination_name']) )
				$theme = $this->result['destination_name'];
			else
				return false;
		}
		return wp_get_theme( $theme );
	}

}

Edit Rename Chmod Delete

FILE FOLDER

Name	Size	Permission
admin-filters.php	7177 bytes	0644
admin.php	2948 bytes	0644
ajax-actions.php	128972 bytes	0644
bookmark.php	9098 bytes	0644
class-automatic-upgrader-skin.php	3100 bytes	0644
class-bulk-plugin-upgrader-skin.php	1896 bytes	0644
class-bulk-theme-upgrader-skin.php	1940 bytes	0644
class-bulk-upgrader-skin.php	5200 bytes	0644
class-core-upgrader.php	13385 bytes	0644
class-file-upload-upgrader.php	3257 bytes	0644
class-ftp-pure.php	5399 bytes	0644
class-ftp-sockets.php	8448 bytes	0644
class-ftp.php	27097 bytes	0644
class-language-pack-upgrader-skin.php	2184 bytes	0644
class-language-pack-upgrader.php	11065 bytes	0644
class-pclzip.php	195795 bytes	0644
class-plugin-installer-skin.php	4306 bytes	0644
class-plugin-upgrader-skin.php	2556 bytes	0644
class-plugin-upgrader.php	14663 bytes	0644
class-theme-installer-skin.php	4081 bytes	0644
class-theme-upgrader-skin.php	3424 bytes	0644
class-theme-upgrader.php	19500 bytes	0644
class-walker-category-checklist.php	4214 bytes	0644
class-walker-nav-menu-checklist.php	4929 bytes	0644
class-walker-nav-menu-edit.php	11204 bytes	0644
class-wp-ajax-upgrader-skin.php	3074 bytes	0644
class-wp-automatic-updater.php	34032 bytes	0644
class-wp-comments-list-table.php	25638 bytes	0644
class-wp-community-events.php	15926 bytes	0644
class-wp-filesystem-base.php	22184 bytes	0644
class-wp-filesystem-direct.php	11222 bytes	0644
class-wp-filesystem-ftpext.php	13465 bytes	0644
class-wp-filesystem-ftpsockets.php	10586 bytes	0644
class-wp-filesystem-ssh2.php	14963 bytes	0644
class-wp-importer.php	7342 bytes	0644
class-wp-internal-pointers.php	5521 bytes	0644
class-wp-links-list-table.php	7602 bytes	0644
class-wp-list-table-compat.php	1068 bytes	0644
class-wp-list-table.php	37340 bytes	0644
class-wp-media-list-table.php	22641 bytes	0644
class-wp-ms-sites-list-table.php	15556 bytes	0644
class-wp-ms-themes-list-table.php	20232 bytes	0644
class-wp-ms-users-list-table.php	12842 bytes	0644
class-wp-plugin-install-list-table.php	19348 bytes	0644
class-wp-plugins-list-table.php	32818 bytes	0644
class-wp-post-comments-list-table.php	1472 bytes	0644
class-wp-posts-list-table.php	52715 bytes	0644
class-wp-screen.php	35535 bytes	0644
class-wp-site-icon.php	6043 bytes	0644
class-wp-terms-list-table.php	17957 bytes	0644
class-wp-theme-install-list-table.php	14524 bytes	0644
class-wp-themes-list-table.php	9267 bytes	0644
class-wp-upgrader-skin.php	5061 bytes	0644
class-wp-upgrader-skins.php	1456 bytes	0644
class-wp-upgrader.php	33913 bytes	0644
class-wp-users-list-table.php	17282 bytes	0644
comment.php	5726 bytes	0644
continents-cities.php	19684 bytes	0644
credits.php	2192 bytes	0644
dashboard.php	63568 bytes	0644
deprecated.php	39173 bytes	0644
edit-tag-messages.php	1411 bytes	0644
export.php	22966 bytes	0644
file.php	82178 bytes	0644
image-edit.php	33553 bytes	0644
image.php	22097 bytes	0644
import.php	6246 bytes	0644
list-table.php	2648 bytes	0644
media.php	106323 bytes	0644
menu.php	8715 bytes	0644
meta-boxes.php	52225 bytes	0644
misc.php	64266 bytes	0644
ms-admin-filters.php	1387 bytes	0644
ms-deprecated.php	2860 bytes	0644
ms.php	35406 bytes	0644
nav-menu.php	42469 bytes	0644
network.php	23879 bytes	0644
noop.php	1222 bytes	0644
options.php	3832 bytes	0644
plugin-install.php	31700 bytes	0644
plugin.php	68668 bytes	0644
post.php	60833 bytes	0644
revision.php	14947 bytes	0644
schema.php	36233 bytes	0644
screen.php	6148 bytes	0644
taxonomy.php	7727 bytes	0644
template.php	80420 bytes	0644
theme-install.php	6286 bytes	0644
theme.php	28334 bytes	0644
translation-install.php	8551 bytes	0644
update-core.php	55770 bytes	0644
update.php	25873 bytes	0644
upgrade.php	95880 bytes	0644
user.php	50052 bytes	0644
widgets.php	10001 bytes	0644

File Content: class-theme-upgrader.php

File Content: `class-theme-upgrader.php`